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Which of these best explains why a molecule of ATP is needed for this type of transport?
A) The particles moving across the cell membrane have a negative charge.
B) The particles are moving against the concentration gradient.
C) The particles are trapped in the plasma membrane.
D) The particles are moving with the concentration gradient.
Answers: 2
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As the pea seeds respire, the level of coloured liquid in the left hand part of the capillary tube rises. by referring to what is happening in the apparatus, explain why the level of liquid changes
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If t=tall and t=short what will be the physical appearance of the offspring the cross below? a.some will be tall and some will be short b.they will all be tall c.they will all be short d.they will be medium height
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Which of these best explains why a molecule of ATP is needed for this type of transport?
A) The par...
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